Parameter variables?

Is there a way to store a value as a parameter, for example, to capture today date to execute automatically an analysis? I am looking to execute the transformations daily over a file that accumulate daily, but only want to show the newer data not the old one, any idea?

You can add $(CurrentDate) as meta information for an input.

You can then use column in a transform.

Thanks a lot! (I used that in every row, it is easier to me)

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